Traction device



Sept 2, 1930. Q, LOMBARD 1,774;835

I TRACTION DEVICE Filed April 4, 1929 2 Sheets-Sheet 1 q The opposite ends/of each pair of cylindrical supports 35 are connected by separating bars'36 which maybe adjusted relatively to each other 'to retain each pair of cylindrical supports in parallelism.

When these bars have been properly adju'sted they are locked together by means of i I the bolts'i37 extending through slots as in To the opposite faces of each sprocket wheel 30 are secured flanged cylindrical memv v bers 39 by bolts 40. t

' .Revolubly mounted upon each 'cylin'dri-calz I I belts i48whicli are made oftoughftabricfland 1 3'0. J $19,012 the sprocketwheeli30 to extend are separated sufliciently to permit the teeth lymd t r' c of S belts; At PI P -Yd S an'ceS apart th t belts *48 have secured, thereto metal connect ng meinactwith the teeuiieso that when'the1 sprockmeans for actuating theendlessibelts 48 but T vfaces thereof forming shoulders-{adaptedto Q the 'snow surface andicaus'e a 1to-r-,

' ward movementoifthe car-wh e the a-xles13 a wee -1;; orde'r'to keep t'he'beltsft8 taut at all times the 1 9k 3em yb m e teu the fends of the'girder by meansofftheadj'ustmemes 4 e;eclr rder' 2 a "ove eachf drum "52 havingfajdj iist ,abl ounted'therepn a scraperbdwhi chis adapted tg meveee w fromthpegi ie *eiyaje'f the drii 'iisj le tw en the car h 'ig y a use;

ermit th pass of the T e runners atit bers .43 to freely rotate onithe.*cylindrical.

5 here '50;-'these.members being adapted to co et wheel is rotated the endless belts will be. These'erossmenibers not only provide s also ha-ve 'flsliaped [projections on the outer read;

may be quickly applied to the front wheels after the shoes have been removed therefrom.

Likewise the tractor mechanism may be quickly applied to the rear axles 13 of the motor carafter the usual wheels have been removed therefrom.

This tractor mechanism is constructed of light weight material and of sufficient breadth so that it will never sink deeply into the snow over which the car is passing.

The spaces between the teeth 49 extend well in toward the axles 13 and provide a ready passage of any snow collected on the sprocket wheel or carried upwardly by the endless It is believed that the operation and many advantages of the invention will be understood without further description.

I Having thus described my invention 1 claim 1; The combination ofa motor car; girders depending from and adapted to swing on the rear axles of said car; adjustable blocksat the opposite ends of" each, girder; cylindrical supports extending-laterally from said blocks; drums revoluble onsaid supports; a

sprocket wheel revoluble with each aXle;

cylindrical flanged members secured to the oppositesides of each sprocket wheel the flanges of which extend outwardly a distance lessthan the teeth of said sprocket wheel;

parallel endless belts passing over the peripheriesot said drums and cylindrical flanged jmembefr s; and connecting members secured to the outer faces of said belts ,coactmg with the teeth of said sprocket wheel; I

2. The combination ofa motor car girders depending fromand adapted to swing'on the rear axles of said car; cylindrical supports extending laterally fro the opposite ends of each girder; drums revoluble on said supports; a sprocket wheel revoluble with each axle; cylindrical flanged members secured to the opposite sides of each sprocket wheel and havinga diameter less'than that of said sprocket wheel; parallel end'less belts'pass- "-ing over the peripheries of saiddrums and cylindrical 'flanged members and means Securedto the outer faces of and "proj ecting outwardly from. said endless belts coacting withtheteeth of said sprocket wheel to f actuate said endless belts.

3. The combination of a motor car; girders depending from; and adapted to swing onthe rear'axle's of said car; adjustable blocks at the opposite ends of each girder; a cylindrical support rigidlylsecured at voneiendto 7 each of "said blocks; drums revoluble on said supports; a'sprocket wheel revoluble with each axle; ]cylindrical flanged members secured tothe opposite sides of each sprocket wheel; parallel endless belts passing over the peripheries of said drums and cylindrical .flangedmembers; means .coactingwith the teeth said sprocket wheels for; actuating said belts;"andadjustable separating bars I connected to the opposite ends of said sup- I ports toretain them-in parallelism, I

i a. The combinationof a motor car; girders depending from and adaptedto swing on the rear axles .of said car; adjustable blocks at the opposite ends of each girder; cylindrical supports extending laterally from said V, blocks; drums revoljuble on said supports; a 10' sprocket Wheel 'revoluble with each axle; cylindrical flanged members "secured "to the opposite sides of eaohsprocket Wheel; par-- allel endless belts of tough fabric passing. over the peripheries of said drums and cylindrical flanged members;.and metal connect{ I i 111g members secured to said belts coacting with the teeth ofsaid sprocket Wheels and" having V-shap'ed members projecting out-I Wardly therefrom.

toward the center thereof; cylindricalflanged a members secured to the opposite sides of each flanged members; and means secured. to the outer faces of said 'belts ,coactingf with-the" teeth offlsaid sprocket-wheels to actuate said belts.- 7

Signed by me at Water ille, Main-,'5h1s" 30th'day of March, 1929.1

5. The combinationof amotorcar; girders I dependingfrom and adapted to-swing on the lrearaxles of said car;'adjustableb1ocks at I the oppositeends offeach girder ;j*cylindriij I I 'cal supports extendinglateral'ly from said Y a blocks; a revolubleimember on each support it having an annular flange; drums revoluble on said supports formed of two up-sh p members secured to said flange; a-sprocket 'wheel revoluble with each axle; cylindrical I flanged members lsecuredto the opposite f, sides of each sprocket wheel parallel endless belts passing over theperipheries of said drums andc-ylindrical flanged members; and means on'the. belts coactingwiththe teeth I of said sprocketwheels'fforactuating said belts; J

' 6. Thecombination-ofamotorcar;girders;' 7 depending from andadaptedto swingonthe rear axles of 'said'car;adjustable-blocks at the opposite ends of eachgirder; cylindrical supports" rigidly "secured; .to said" blocks' and extending laterally therefrom; flanged, f'drums' freely revolublelon said supports;:'a 1

sprocket wheel revoluble with each axle and I I having the spaces between the teeth-thereof.

extending fin'wardlywell toward the center w thereof; cylindrical flanged members secured to the opposite sides ,of .each sprocket wheel with theirinner edges welloutside theinn'er 'ends of said spaoes;--parallel. endless belts passing over the peripherieslofLsaid; drums V andcylindricalflangedmembe be w e a and cylindrical flangedimembers, I s car; girders depending from and adapted to swing on the I V rear axlesjof said car; cylindrical supports I extending laterallyffrom the 'oppo'site'ends i 5 fiange's'thereof'; means secured-to theouter I V faces'of said belts and coactingwiththeteeth V I of said sprocket wheels to actuatesai'd belts i I and meanssupported-by said -girder's'ifor re-o i 1 I V movin fsnowffromthejsurfaces of said drums The combination ofa motor of each girder; drumsreyoluble on said sup rports; sprocket-wheels having the spaces be I as tween their tmatll "extendingainwardly we1l] I v I I ALVI -E OILO ARD QQ i o 115;: j I

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